Attachment for mowing-machines.



J. N. WILBUR.

ATTACHMENT FOR MOWTNG MACHTNES.

APPLTCATION FILED 1AN.24l 191B. 'Y

Patented Feb. 25, 19l9.

2 SHEETS-SHEET l.

attoems l J. N. W'ILBUB.` ATTACHMENT FOR IVIOWING MACHINES. APPu'cATlloN FILED 1A-N.24.1sls-.

Patented-Feb. 25, 19119;

2 SHIETS-SHEE 2.

UNITED sTATEs PATENT oEEicE. *i

JOHNN. wILBUn, or Tacoma, WASHINGTON.

ATTAGHMENT Eon. MowING-MAGHI'NES.

To all 'whom t may concern.'

' means for actuating the vvertical sickle which is attached to the mowing machine.

VAnother object of `this invention is the production of a simple and efficient means for supporting and operating the'vertical sickle bar in conjunction with a mowing machine. With these and other objects in view this invention consists ofcertain novel constructions, combinations and arrangements of parts as will behereinafter fully-described and claimed.

In the drawings Figure 1 is a side-elevationofthe vertical sickle bar'operating mechanism.

Fig. 2 is'a rear elevationof a portion of a mowing machine, the-vertical sickle mechanism being shown in rear elevation.

Figf is a top planview ofthe vertical sickle bar mechanism.. Y

Fig. 4: is a fragmentary perspective view showingY the mounting of the fender plate.

:Fig- 5 is a section taken on 1ine"5-.-5 of Eig-1.' i ,-Fig. 6. is a detail perspective view of one ofthe ledger plates carried by the vertical sickle bar. I .p L

Fig. 7 isa detail perspective view of the lever means for actuating the vertical sickle bar.

" Fig. 8 isa section taken on line 8--8 of Fig. 3. y f Fig. 9 Vis section taken on line 9-9 l.of Fig. 2.

Fig. 10 is atop plan view. ofthe lower frame of the vertical sickle ybar operating mechanism. v

Fig. 11 is a .section taken on line 11--11of Fig. 12 is a detail perspective ofthe inner end ofthe arch brace which is adapted to connect to the yaxle ofthe mowing machine. Fig. 13 is a fragmentary perspective view Specication of Letters Patent.

Patented Feb. 25, 1919.

` Application led January 24, 1918. Serial No. 213,564.

of the shoe-bar with the shoe en finger plate attached thereto. V

Fig. 14 is a fragmentary, perspective view of the shoe-bar, showing thevpivoted-loop attached thereto.v f I i 1 By referring to the drawingsit'will' be seen that 1 designates the frame of the mowing machine which is provided with the usualhorizontal mower bar v2. vThis horizontall mower bar 2 carries a shoe 3 towhich is attached a swather board 4. v This shoe 3 carries a vertical sickle bar 5 which vertical sickle bar comprises amain` standard 6 which standard 6 carriesa guard plate 7 and a plurality of ledger plates 8.

aging;

One of these'ledger plates'S isshown in de tail in Fig. 6 and comprises a securing arm 9 having a knife engaging tonguelO which is secured to this outer end thereof. 'A knife carrying plate 11 is interposed between the ledger plates 9 and thegguard plate 7 and this knife carrying plate 11 supports a plurality'of blades 12 which blades constitute the knife vertical sickle. By means of the structure shown' clearly in Fig. 5, it will be seen that the knife blades 12 are interposed between the tongue 10 and the forwardly extending guard fingers 13 of the guard plate 7. The lower endoflthis knife or sickle supporting standard 6 is secured to the shoe 3 as indicated at 14'bymeans of a bolt or other securing means V15. t

A substantially V-shaped shield 16' is se-v cured to the sickle carrying standard 6 and lower end of the sickle 5 andreceiving the- 'bolt 15 for constituting an 'eificient means for connecting the frame 20 to the lower end of the Ysickle 5.. The framev 20 extends Vupwardly at an angle to the horizontal axis to the wheel 19 and supports a sprocket carrying shaft 22 near the upper end thereof. This sprocket carrying shaft 22 carries a primary Adrivin sprocket'23 which is keyed thereto and this sprocket A23 isfdriven by means of a sprocket chain 24 which passes over the main driving sprocket 25 secured to the wheel 19. A looselyl mounted sprocket 26 is carried by the shaft 22 and is adapted to be engaged by a sliding clutch 27 which clutch 27 is alsokkeyed to the shaft 22. T-his clutch 27 "is "engaged "by means of an operating lever 28 which operating lever 28 is pivotally mounted upon a bracket 29 carried by the iframe 20 thereby 4enabling the operator to shift the clutch for driving the sprocket 26 when it is Sodesired.

A cam :supporting shaft 30` is carried by an upwardly extending auxiliary frame 31 which frame 31 is carried by the lower frame y20. The `shaft 30 carries a sprocket wheel '32 and-this sprocket wheel -is driven through the medium of lthe chain 33 which also'passe's lover the sprocket wheel 26. An eccentric wheel 34 iskeyed to the shaft 30 and Works within a yoke 35 carried by an operating-lever 36. This operating lever 36 is shown indetail in Fig. -7 and comprises an inner -fin er 37 land an outer finger 38, said fingers -3 and 38 being connected by the links-39. The outer lend of the inger'38 is connected to a pair of links 40 which linksare in'turn connected to the upper end 41 of Ythe ,knife carrying plate 11 of the vertical sickle 5. The links 39 are pivotally connected or supported upon 'abolt 42 carried by the arch brace bars 43 which brace bars are connected to the shaft 30 at one end by a securing bolt 44 carried by the upper gud `of the-standard 6 of the vertical mower lFrom the foregoing description it will be seen-that a very simple and efficient means has kbeenpr'oduced :for operating the vertical sicklebar through the medium of the eccentric wheel 34 acting upon the yoke 35 and thereby rocking the lever 36 and in turn reciprocating the knife carrying-plate 11.

In order that the vertical sickle bar operating mechanism may be placed and held inproper relation with respect to the main mowing machine 1, .an arch brace .45 lis employed which is :connected at one end to the axle "46 which supports the wheel 19 and passs through a l yoke bolt 47 'carried by the vertical lframef31. 'The opposite end oi' the arch plates 45 is Yprovided with an aperture 48 lwhichpasses through the axle 49 of the main .mowing machine 1 and a retaining plate y50. is securedto` the arch plates 45 by means of a bolt 51 and the other end of the shaft 49 for firmly holdingthe arch plates 45 :from being accidentally released from the shaftv 49.

y Referring,particularly to Figs.` 13 and 14, attached by theshoe bolt 53 is a shoe-engaging 'finger-plate '54. This plate 54 is provided with an aperture 55 through which bolt I5 3 extends, and saidfplate 54 is provided with a second aperture 56 for a second atloop 62 surrounds aportion of the side of the frame 20, Fig. 1, and loop 62 limits the movement of shoe 3 in a vertical plane,since` byreason ofthe double fastening of the bar 61, at 60, to the plate 54, when the shoe 3 rides over uneven fgrou'nd it will slightly pivot on=bolt 53, causing the forward end of the shoe to'rise or fall, owing-to the unevenness of the ground, swinging the bar 61 in a'vertical plane, but by reason of the loop 62 being attached to said barf61, and "said loop surrounding the side of the frame 20, too much play of the shoe will not beper- 85 mitted.

What is claimed is 1. A vertical 'sickle attachment for mow-` ing machines comprising a driving wheel, a frame, a vertical sickle bar, an vupwardly extending auxiliary frame secured to said irstmentioned frame, an arch brace secured to said auxiliary frame and to the 'upperf end of said sickle bar, a lever carried by-,said arch brace for 'operating said sickle bar, said lever provided with a substantially `U` shaped rear end, ,and Yan veccentric wheel working within said substantially -U-shaped 'rear end, a shaft supporting saideccentric wheel, and means for driving said eccentric wheel.y r l 2. A vertical sickle attachment for mowing machines comprising a drivingv wheel, a frame,` a vertical sickle Vvbar,fan upwardly extending auxiliary frame secured to said firsty mentioned frame, an arch bracesecured to said auxiliary iframe and tothe upper end of said sickle bar, a lever carried by said arch brace for operating said sickle bar, :said leverfprovidedwith a substantially U-shaped rear end, an eccentric wheel working within .said 4substantially "'U- shaped rear end, a shaft `supporting :said eccentric wheel, means for drivingsaidgeccentric wheel, said lever :comprising a'plu- 115 rality of sections, and link means connecting the inner ends of said sections. y Y

3. A vertical sickle attachment for mowing machines comprising a driving wheel, va frame, a vertical sickle bar, an upwardly y120 extending auxiliary. frame securedto said first mentionedv frame, van arch brace secured to :said 4auxiliary kframe and tothe upper end of said sickle bar, a lever car-ried by A said :arch brace for operatingsaidzsicklebar, 125 said lever'provided with a substantially U- shaped'rear end, an eccentric wheel working within said substantially U-shaped rear end,

a shaftk supporting said eccentric wheel, M means for driving said eccentric wheel, a 180 driving sprocket'carried by said rst mentioned frame, a shaft supporting said driving sprocket and keyed thereto, a loosely lnounted'sprocket carried by said last mentioned shaft, a clutch for engaging said loosely mounted sprocket for causing the same to rotate with said last mentioned shaft, a sprocket carried by said driving Wheel, anchain passing over said driving sprocket and said sprocket carried by said driving Wheel, and a chain passing over said loose sprocket for driving said eccentric Wheel.

4.-. A vertical sickle attachment for mowing machines comprising a main frame, a 15 vertical sickle' bar, means connecting said bar to said main frame, a frame connected to said vertical sickle bar, an arch brace secured to said last mentioned frame, said main frame provided With an axle, one end 20 of said arch-brace overhanging one end of said axle, and a retaining plate secured to said arch brace and connected at one end to said axlev for supporting said arch brace upon said axle.

In vtestimony whereof I hereunto aliix my signature.

JOHN N. WILBUR.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

